Jessica Biel and son Silas Timberlake, 9, enjoy rare public outing at US Open

Jessica Biel took her and Justin Timberlake’s oldest son, Silas, to the US Open for a rare public outing.

The “7th Heaven” alum and her 9-year-old son attended the fourth day of the US Open Tennis Championship at the Billie Jean King National Tennis Center in Queens, NY, on Thursday.

The two were seen walking into Arthur Ashe Stadium to watch Karolina Muchova beat Naomi Osaka in the second round.

Jessica Biel attended the US Open on Thursday with her and Justin Timberlake’s son Silas. GC Images The “7th Heaven” star and her 9-year-old son watched Naomi Osaka and Karolina Muchova’s match in Arthur Ashe Stadium on Thursday. GC Images The mother-son duo attentively watched the second round on Thursday. GC Images

Biel, 42, and her son sat next to each other and each seemed to be in good spirits while they chatted, smiled and clapped.

The “Sinner” actress looked chic in a matching cream suit with a white shirt underneath and cream boots. She held onto a brown bag and let her short brunette hair fall to the top of her shoulders.

Silas also dressed up for the occasion and sported a Ralph Lauren green-and-blue striped collared shirt, khaki pants and blue sneakers.

Both Biel and Silas seemed to be in good spirits while watching the match. Jason Szenes for New York Post The “Candy” actress looked chic in a cream suit. Jason Szenes for New York Post Meanwhile, Silas dressed up in a blue-and-green striped shirt. GC Images

Biel and her husband have attended the famed tennis match several times over the years, and she even went earlier in the week by herself.

The actress wore a matching light blue vest and pants set to take photos at the Moët & Chandon Clubhouse suite on Wednesday.

Despite being a frequent tennis match attendee, Biel had not previously brought along Silas or their 4-year-old son, Phineas.

Biel has not previously brought Silas or his brother, Phineas, to the annual tennis tournament. Jason Szenes for New York Post The actress also attended the US Open on Wednesday. GC Images Biel watched from the Moët & Chandon Clubhouse suite on Wednesday. Joey Andrew/startraksphoto.com

Biel and the “Mirrors” singer, 43, have previously been vocal about their decision to keep their sons out of the spotlight.

“We get hammered [by the paparazzi] in the West Coast. That’s why we don’t live there anymore to try and create some normalcy,” she explained to Kelly Ripa on a May episode of her “Let’s Talk Off Camera” podcast.

The “Candy” actress added that she’s waiting for her kids to grow up to “have an ability to make the decision for themselves.”

Biel has previously kept her sons out of the spotlight. Instagram/@jessicabiel Biel and Timberlake, pictured here with Silas in Switzerland in 2019, chose to wait until their sons could decide on the spotlight themselves. GC Images

“No disrespect to anyone who feels comfortable doing that, that’s just our family choice. Maybe it’s a mistake. I don’t know,” she confessed.

Timberlake has spoken less about the topic, but he recently raved about his two kids in a sweet Father’s Day post in June.

“My 2 greatest gifts. I learn more about myself everyday just because you both chose me to be your Dad. I will always be there for you through your peaks and valleys… to lift you up and show you how high you can take this life and to pick you up when you fall,” he captioned photos of him holding each of his sons.

The “Cry Me a River” singer recently posted a sweet tribute to his sons on Father’s Day. Instagram/@justintimberlake Biel and Timberlake, pictured here in Los Angeles in January 2018, have been married since 2012. Getty Images for American Express

The Grammy winner thanked them for being his “biggest purpose.”

Timberlake shared the sweet post just two days before he was arrested for driving while intoxicated in Sag Harbor, NY, on June 18.

Biel and Timberlake met at a birthday party in 2007 and tied the knot in Italy five years later.